Closure means for fuel-heating devices and the like.



- D. BA'RNARD. CLOSURE MEANS FOR FUELIHEA'HNG DEVICES AND THE LIKE.

' Aymcmon FILED 8.25.1913.v

1 2 5 5; PatentedNov. 21,1916.

. tioncd.

UNITED STATES PATENT- union.

DAVIS BABNARD, OF LOS ANGELES,

CALIFORNIA, ASSIGNOR TO BARNARD MANUFAC- TUBING COMPANY, OF LOS ANGELES, CALIFORNIA, -A CORPORATION OF CAI-I FORNIA.

CLOSURE MEANS FOR FUEL-HEATING DEVICES AND Application filed February 25, 1913. Serial No. 750,695.

tron.

Specification of Letters Yatent.

An object of this invention is to providewhich maybe readily removed by hand against the opposition of the spring or springs normally holding the same in place,

said covers being as readily replaced by.

hand after, the device provided with said covers has been cleaned.

The closure means of this invention are more particularly intended to be applied to the type of fuel heater illustrated in the ac companying drawings, but it is not intended to limit the invention to such use. Referring to the accompanying drawings, which illustrate the invention, Figure 1 is a side elevation of the complete device, the left hand portion of the view being see- Fig. 2 is a cross section on line m -a of Fig. 1. Fig. 3 is a side elevation showing the closures removed. Fig. 4 is a side elevation on a smaller scale to illustrate the flexible conduits to which'the rcmovable covers are connected.

Referring in detailto the drawings, which illustrate the preferred embodiment of the invention, 1"designates a four-way fitting having lateral branches 2 and 3 and vertica'lly extending branches 4 and 'Dlie laterally extending branch 2 is normally closed by a closure cap 6, and the opposite lateral branch 3 is normally closed by a like closure cap 7 Said closure caps are yieldingly secured in the closed position by a pair of spiral tension springs I hold said closures in the open position when said closures are removed and brought down to the position shown in Fig.- 3. In Fig. 4 the device is shown connected THE LIKE.

Patented up with the exhaust pipe of an engine. In this view the cap 7 and the exhaust pipe 14 are connected by ble-tube 16 may also be attached to the other cap 6, said tube 16 leading to a vent pipe (not shown). The flexible tubes 15 and 16 enable the operator to remove the caps 6 and 7 without the use of tools to loosen couplings or disconnect other parts.

In the embodiment of the invention illustrated in the drawings, this device is shown applied to a fuel heating device having a multiplicity of heating laterally therethrough, as seen in section in Fig. 2, and shown also to some extent in the sectioned portion of Fig. 1. It will be understood, however, that this closing device may be applied to open ended tubular casings in general Wherever it. is desired to render the interior of the same easily accessible. The casing is provided on each end with a lug 12 which seats in a notch 13in the'cap, to prevent rotation of the caps after they have been turned to bring the springs into the positions indicated in Figs. 1 and The notches are so spaced that they engage the lugs when the covers have been rotated to the proper position.

\Vhen the caps are seated on they are preferably turned so that the springs lie adjacent the branches 4-5 instead of being disposed in the same horizontal plane. since in this position the caps are more difficult to remove and-"will not become acci-. dentally displaced due to the weight-of the tubes Iii-16. \Vhen the caps are removed they are rotated, due to the unequal pull of the springs, so that the springs lie in the same horizontal plane.

When the caps are to be removed they are first pulled outward slightly to disengage the'caps from the lugsand are then rotated to bring the springs into the same horizontal plane. With the springs in this posi tion, the caps are then pulled outward and downward against the pull of the sirings and assume the position shown in "g. 3. When the caps are in this positionthe tubes may be readily cleaned.

I claim: I

LA casing having oppositely arranged open ends, a closure rotatably mounted on each end, springs extending longitudinally the casing Nov. 21,1916. I

a flexible tube 15. A fiexi I tubes 11, extending on opposite sides of the casing connected at their end to said closures and adapted to nornmll hold the closures to their seats, and a flanged abutment ieitencling transversely from the (using ndnpteii to he engaged by the closures when they are removal from the ends of the casing. 4

:2. A casing hm'ing oppositely arranged open ends, a closure adapted to seat on each of said ends, :1 plurality of tension springs nttuehell at their opposite ends to said 010- sures and adapted to hold said closures to their seats, :1 transversely extending conduit projecting from said casing between said longitudinally xtending springs, and a fiangeon the end of said conduit. Said clo- 1,2os,591 I sures: being so shaped Jnat they may engage hetween $110 casing and the "flange the points of attachment oi" the springs to fihe closures lining such that the tension of the springs holclss'the closures in position against said flange.

In testimony whereof I have hereunto signed my name in the presence of two subsvrihlng \vitneaws at llos Angeles, in the vounty of Los Angeles and State of Cullfoi'niu, this; 19th day of February 1913.

' DAVIS BiaRIL-XRD.

Witnesses ALBERT H. MERRILL, (Tins. J. loimn. 

